We're Heidelberg's Primary Geothermal Contractor! Heidelberg, Mississippi, homeowners have all sorts of reasons for wanting a geothermal heating and cooling system: remarkable year-round comfort – no matter how crazy the seasonal variations stable operating efficiency energy performance (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – sometimes outstanding – savings on their energy bills premium installation and maintenance from American Air Specialists, Heidelberg's geothermal professionals. Learn more about what a geothermal heating and cooling system can do to improve your family's comfort. Look at our Geothermal Savings Calculator. Then contact American Air Specialists. We sell, install, and maintain heating & cooling geothermal systems, the very best on the market today.